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Efficient utilization of cache servers in mobile communication system

a mobile communication system and cache server technology, applied in multiplex communication, wireless communication, instruments, etc., can solve the problems of data loss or becoming in the possession of others, data center may not be able to quickly respond to access from terminals, and undermine the intention of improving data throughput, so as to achieve the effect of improving throughput in the mobile communication system

Inactive Publication Date: 2008-06-05
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0022]According to at least one embodiment of the present invention, the cache server provided on the core network and the cache server provided on the radio access network are efficiently utilized, thereby improving throughput in the mobile communication system.

Problems solved by technology

Further, a problem may arise in that the data may be lost or become in the possession of others due to the loss or failure of the terminal device.
Since the data center is situated at a higher level in hierarchy than the radio access network (RAN), there is a risk that the data center may not be able to quickly respond to access from the terminal apparatuses.
This may undermine the intention to improve data throughput by providing cache memories.
It is thus difficult to store data in each cache server according to the same decision criteria as was used in the related art.

Method used

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  • Efficient utilization of cache servers in mobile communication system
  • Efficient utilization of cache servers in mobile communication system
  • Efficient utilization of cache servers in mobile communication system

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Experimental program
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first embodiment

[0054]FIG. 3 is a drawing showing a system according to an embodiment of the present invention. The system of FIG. 3 includes an Internet network 10, a data center 11, a core network CN, a radio access network RAN, and a user apparatus UE.

[0055]The Internet network 10 is connected to a gateway provided in the data center 11. The user apparatus UE can acquire a desired file from any proper node situated on the Internet network 10 through the gateway. The Internet is used as an example for the sake of convenience of explanation. In place of the Internet, any network may be used that can be accessed for data acquisition by the user apparatus UE.

[0056]The data center 11 has the function to store files that the user apparatus UE has obtained from the Internet network 10 while distinguishing these files into shared data and individual data, and also has the function to transfer the stored data to cache servers provided in the CN and RAN. In order to implement these functions, the data cen...

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Abstract

A data center includes an individual storage unit having storage areas for respective user apparatuses, a shared storage unit having a storage area for sharing by the user apparatuses, a unit configured to store data received from an external node in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria, a unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, and a unit configured to transmit an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list to cause data stored in the at least one of the shared storage unit and the individual storage unit to be transferred to a cache server provided on a core network or on a radio access network.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2006-326175 filed on Dec. 1, 2006, with the Japanese Patent Office, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention generally relates to the technical field of mobile communications, and particularly relates to a data center, cache server, and method for use in a mobile communication system.[0004]2. Description of the Related Art[0005]In the technical field of mobile communications, various services are put into practice as a result of improvements in the performance of mobile terminals such as portable phones. Especially, development in the data delivery service such as music delivery, video delivery, and the like is remarkable. The data delivery service includes a mobile data center type and a data download type, by ...

Claims

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Application Information

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IPC IPC(8): G06F13/00H04W28/00H04W88/18
CPCG06F3/061H04L65/1016G06F3/067G06F3/0638
Inventor NITTA, DAISUKEKUMAGAI, TOMONORIKOBAYASHI, KAZUNARI
Owner FUJITSU LTD